> ## Documentation Index
> Fetch the complete documentation index at: https://nango.dev/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Kit - How do I link my account?

## Overview

To authenticate with Kit, you need:

1. **API Key** — a V4 API key from your Kit account settings.

This guide will show you how to create one.

### Prerequisites

* A Kit account. If you don't have one, [sign up](https://app.kit.com/users/signup?plan=kit-free).

### Step 1: Create a V4 API key

1. Sign in to Kit and open **Settings** > **Developer** ([direct link](https://app.kit.com/account_settings/developer_settings)).
2. Under **API keys** > **V4 Keys**, click **Add a new key**. Use a V4 key, not the legacy **V3 Key** shown on the same page.

![Kit Developer settings with the Add a new key button under V4 Keys](https://mintcdn.com/nango/2Q-Y4TMpRq_7zJwN/api-integrations/kit/developer_settings_add_key.png?fit=max\&auto=format\&n=2Q-Y4TMpRq_7zJwN\&q=85\&s=03ed597b51f419728a24721bfb60e546)

3. Enter a name in **Name (Internal use only)**, then click **Create API Key**.

![Kit New API Key dialog with the name field and the Create API Key button](https://mintcdn.com/nango/2Q-Y4TMpRq_7zJwN/api-integrations/kit/new_api_key_dialog.png?fit=max\&auto=format\&n=2Q-Y4TMpRq_7zJwN\&q=85\&s=6d6fe5cd90525c54308acc0df97a5d72)

4. Click **Copy** to copy the key, then click **Done**. You can't view the key again after you close this window.

![Kit dialog confirming the API key was created, with the Copy button](https://mintcdn.com/nango/2Q-Y4TMpRq_7zJwN/api-integrations/kit/api_key_created.png?fit=max\&auto=format\&n=2Q-Y4TMpRq_7zJwN\&q=85\&s=331414d3672f50ae773bf41a695abbf6)

### Step 2: Enter your API key in the Connect UI

1. Open the form where you need to authenticate with Kit.
2. Enter your V4 API key in the **API Key** field.
3. Submit the form, and you should be successfully authenticated.

![Kit Connect UI form with the API Key field](https://mintcdn.com/nango/2Q-Y4TMpRq_7zJwN/api-integrations/kit/form.png?fit=max\&auto=format\&n=2Q-Y4TMpRq_7zJwN\&q=85\&s=e248f40d86874112fa822988a1461591)

You are now connected to Kit.


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